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In the Forum: Didital Things
In the Thread: High Quality Music Server / CD player
Post Subject: The problem that I have with idea of USB DACing.Posted by Romy the Cat on: 12/11/2008
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 jessie.dazzle wrote: |
Those considering a USB DAC may want .... |
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Before I wrote the post that Jessie reefed I consulted with a few quite knowledgeable people in the digital field who explained to me all aspect of USB DACs. From what I understood it is clear that if (a big “if”) a USB DAC is properly implemented (that they admitthat is not frequently happen) then USB DACs have a lot of advantages over non-USB methods. However, what I feel is “strange” (among what I have seen) is that as soon people begin to use USB DACS then they forget about the guilty of DAC itself and begin just to stress the “quality” of USB method. A DAC is DAC. Take two DACs and see which one is better with the same let say S/PDIF interface. If the USB-able DAC turned out to be "better" with S/PDIF or EBU then, only THEN, engage the USB and observe the alleging USB's advantages and enjoy the ride.
People make DACs for 30 years very complex and very expensive, some of them a very good. The last few years there is an army of little USB that sold for very little money has a few chips and a few op-amps. Many people who make them have even no own recourses to write own USB drivers. I do not make assumption that those DACs are not good, they might be very good but I juts a bit skeptical then they are not as good as the USB topology might allow them to be.
So, for sake of preventing a self-delusion, in a competition USB DACing vs. dual-clock DACing I would like to hear the USB DAC driven by S/PDIF and get a feeling that is a good DAC itself. I do not see people talk a lot about it… That is what I see a “problem” with idea of USB DACing.
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